My puppy is 7 weeks old now, and I've had him for a week. He does NOT like the leash, except when he's outside with his big sister (who doesn't yet WANT him out there when she's outside). I don't have a fenced in yard, and Simon is starting to get VERY confident now, he's starting to explore the yard more, and I just don't want him to run off. (YES, I'm paranoid, and probably WAY too overprotective.) Any advice on how to get him to go potty on leash? He goes VERY well OFF leash, but I'm just not comfortable with that continuing much longer. All he does on leash is bite the leash. I'm thinking about getting him a little harness -- he can't bite that.